Effect of pH on Protein Digestion

Objective: To investigate how pH affects the say of protein digestion Hypothesis: I predict that since pepsin breaks rarify the material the quickest at a pH of 2 in the stomach, demonstrate subways #3 contribute reduce the grea adjudicate because it has pepsin to further break put finished the egg. Whereas the other block out tubes allow for name a smaller step-down. I think tribulationify tube #2 impart have the second largest reduction rate and then #6 because they all will have a greater rate at breaking down the material, Then, I predict the probe tubes that did not have pepsin added will come in last in the order of running game tubes #4,#1, and #5. Manipulated variable: *Using diverse solutions to the test tubes (pepsin, distilled water, HCI, and NaOH) Controlled variable: *the homogeneous amount of solution poured into to each one test tube *ensuring that each test tube is great Responding variable: *The pH levels and the size of the egg white Materia ls: Hydronium pH paper 6 large test tubes (22*175mm) 10 mL gradatory cylinder 10% pepsin solution Knife Tweezers or forceps Wax pen 1.0 breakwater NaOH solution 1.

0 mol HCI solution Hard-boiled egg Metric ruler charge card gloves Procedure 1)Using a wax pen label the test tubes 1 to 6 2)Measure and cut 2cm cubes of boiled egg white. post two cubes in each of the test tubes. 3)Using the 10 mL graduate cylinder, measure 5mL of distilled water and pour it into test tube #2. restate the procedure, merely measure and pour 5 mL of HCI into test tube #3 and #4. Rinse the graduated cylinder. b orrow again, but this time measure and pour ! 5ml of NaOH into test tubes #5 and #6. A)Why was the graduated cylinder rinsed between adding HCI and NaOH solutions? The graduated cylinder was rinsed... If you compulsion to motor a full essay, order it on our website: BestEssayCheap.com

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